PSA: allow float soc

vehicle/psa/provider.go

@@ -34,7 +34,7 @@ func (v *Provider) Soc() (float64, error) {
 				continue
 			}
 
-			return float64(e.Level), nil
+			return e.Level, nil
 		}
 
 		err = api.ErrNotAvailable

vehicle/psa/types.go

@@ -55,7 +55,7 @@ type Status struct {
 type Energy struct {
 	UpdatedAt time.Time
 	Type      string // Fuel/Electric
-	Level     int
+	Level     float64
 	Autonomy  int
 	Charging  struct {
 		Plugged         bool